descending vs upward

descending

adj
  • Ordered such that each element is less than or equal to the previous element. 

  • Moving or sloping downwards. 

  • Becoming lower in pitch. 

  • Causing a sequence to follow a descending order. 

noun
  • A descent. 

upward

adj
  • Directed toward a higher place. 

adv
  • In a direction from lower to higher; toward a higher place; in a course toward the source or origin 

  • Yet more; indefinitely more; above; over. 

  • In the upper parts; above. 

How often have the words descending and upward occurred in a corpus of books? (source: Google Ngram Viewer )